US931983A

US931983A - Magazine-firearm.

Info

Publication number: US931983A
Application number: US46035408A
Authority: US
Inventors: Thomas Robert Raney Ashton
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-10-30
Filing date: 1908-10-30
Publication date: 1909-08-24
Anticipated expiration: 1926-08-24

Description

TJR. R. ASHTON.

MAGAZINE FIREARM,

APPLICATION FILED 0013.30, 1908.

' Patented Aug. 24, 1909. ZEET-SHEI'T l.

UNrrED-srnrns ATENT OFFICE. A

-THonAs'noBEn'r RANEY ASHTON, Aon Lennon, ENGLAND.

Application led October 30,- 1908.* Serial No. 460,354.

specification of Letters Prm. Patented Aug. 24, 13.9053.

. MAGAZINE-malanni.

To alivhom it may concern." 1 l Be it knownthat I, THOMAS --RQBERT .RNEY ASHTON, engineer, a subjectof the King of'lthe British dominions, residing at London, England, and whose .postwlcev address isv 40 Blandford Square, London, England, have invented certain new and useful Improvements in Magazine-Firearms, -of Whichthe following is'aspecication.

This invention relates to the breech-action of rifles provided With a straight-pull bolt l'operating slide'and dust cover, and has 4for lts objects: 1. To provide the said slide with a forward extension, whichacts on the bolthead at the commencement of the retract- 1ve motion of the bolt and thereby increases the durability of the bolt. 2. To' provide the said.A slide" with a forward; extension magazine or charger. 3. To utilize 'thedust c over as a'support for the back-sight of thel rule..

The invention alsocornprises an improved Shape of the groove, which produces the rotary motion to the bolt, and an improved safety locking device for the slide andv the iiring pin.

I In the accompanying drawings'Figure 1".

v is a side view and Fig.` 2 a rear vieW of the .extreme rear position.

breech part ofan English short service rifle modified according to my invention, the straight-pull slide 'containing the bolt being shown inY the extreme forwardposition.'

Fig. I3is a side view corresponding to Fig. 1', but showing the straight-pull slide in the Fig. 4 is a plan. of the straight-pull slide, Fig. 5 is a side viewof the bolt and cooking head', Fig. 6 is a' section of the bolt along lin'e X-X' of Fig. 5, Fig. 7 is an inverted-plan of the straight-pullslide, Fig. 8 is a section of the straight-pull slide i along line y-y of Fig .4, Fig. 9 is a section of the breech frame, Figs. 10 to 21 areuenlarged detail views of a safetylocking device for l the straight-pull slide and cooking head', Fig.

1 0 is a side viewshowing the rear end of the operating slide in its extreme forward orfiring position, .the cooking head 18, which is connectedwith the rear end of .the firing pin, in the cocked position, and the safety locking device, the latter beingshown in. section and serving .to prevent the' retraction of the slide or the forward motion of the firing pin. Fig. 11 is a side view'showing the cooking head, after the ring pin has been shot forward, and the safety devicein the open or "unlocked position. ',Fig. 12 i's reir' View or the locking pin in the same position as in i-a sectional side ,view of the The operating slide is guidedparallel to the bolt-axis by `a pair of longitudinal grooves 1.4 and 15, in4 which are adapted to slide `guide rails 16 and 17formed on the 'side oi the breech frame, as indicated by Figs.- 2, 8

y and 9.' Wlnch serves as a guide to the cartridge The slide and dust cover 1 has in its underside a helicallyA curved groove Z'adapted toreceive the friction roller 20 mounted on a stud 19 projecting from the side of the bolt., i and serving to produce a as shown in Fig. 6

rotary locking and unlocking motiony of the bolt. During the first part of the retractive 'h motion of the slide 1 viz': that which proi duces the rotary motion of the bolt, the said' friction rollerslides in the groove 2. As

' shown by Fig-.14, the rear end of this groove is almost parallel to lthe axis 'of the bolt,

while the front part forms a steeper angle and terminates in a rest orpocket a, and the portion 6 of the dust-cover 1 in proximity to the groove is strengthened. The said rest a. offers a resistance to any accidental 'turning motion of the bolt, after it has .reachedits extreme position.

The handle 3 of near its rear end in convenient proximity to theI trigger.

In the drawings 7 is' the frontend of the' breech frame, 8 is thc gun barrel, Q'th'e projecting part of the ordinary bolthead 10, 11` is an ordinary bolt, with Aits gui-de lug. 12 and locking lug 1.3, but provided with a stud 19 an'd'friction roller 20,- as mentioned above.'

the dust-cover is placed i The slide or dust-cover 1 extends forward from the slot 2 and has at the front end a slot or openingl, which is slightly wider than the cartridge charger' or movable cartridge magazine and is placed so, thatgin theextreme rearposition of the slide, shown by Fig. 3, the said groove/l serves to guide the rearl end of the cartridge charger, when it is being introduced from above into the magazine opening of the rive.' p

Between the front end of the slide 1 end the groove 2, there is en opening 5 placed so that, when the slide 1 lios been Withdrawn sufficiently to turn and unlock the bolt, and the roller 20 is therefore at t'ne front end ol' the slot 2, the face 25 oi the slide inipinges against the face26 of the bolt head 10. Consequentlyduring the further reti-activeV motion oi'tlie slide the pressure oi' the lace 25 upon the bolt heed serves to draw the empty cartridge cese out of tlie cartridge bed, thus relieving tlie strain l'on the stud 19 and the neck Aoil" the bolt, and avoiding the danger of a recess 24 adapted to receive the upper lnili" of s cylindrical pin 29 mounted in the side of the breech frame at right angles to the said base across the lower edge of the saine. The pin 29 is cut out diametrically et the inner extremity for a width correspondingto the width of the bose 23, es shown by 1 `igs. 12, 13, 14 und 15. The outer end 3() of the pin 29 is pivoted in the upper end of e flat spring 31 fixed et its lower end by a'screw 35. On the pin 29 is ixed a rilnery locking lever 32 adapted to ect on

tie arms

33 and 34 of a locking disk 36 shown separately by Figs. 19 and 20. Tlre said locking disk is mounted on the outer end 3() of the pin 29 between the leu ver 32 end the heed oi the spring 31, and adnptcd to turn. on. the locking pin. In the locking:r position shown by Fig. 1 0 the arni 33 abuts against-the dust-cover l, so as to prevent tlie saine i'roin rnoif'iny; lnrcltwaid :ind the notched inner ei'trcinit y of the pin 2U occupies the position shown by Fig. 1.3, so es to project into the recess 241 ol' the cool;u ing liend 1S, :rnd to prevent the liolt from moving iorwerd or lmclin'erd. The rocking head, together with the firingn pin, is thereM fore locked, ns well es the straiglit-pull slide. I For unlocking?r tlie ln'ceeli incchnnisrn, tiic lever .is is turned forward in the direction opposne to tlic motion or n. cloclrlmnd, until it cnLers the notclu-d peri' of tlic erin 33:13, und.

censos l'lie locking distY 36 1.o turn with ille lex rr. unl il il occupier: tlic pesitifni slion'n by lig. i l. By this :notion tire :inni-33 is turned ont oi' (llc nulli of tile slide 1,'so that tllc lut-- if@ ran lio drown batclt, :nid the locking pin turned oni oil the recess 24 of the coclrirur heini.

'Vlie locliinf pin is supported in ille lneecli 'l'rmne iii' menus of a rinluj `i() wllicli luis :in inn ernnl ffrendlncud lifting on ille screw--` seines tln'euded portion lug 41 which is guided in a groove 42 of the breeclufrcine, the said groove 42 coii'munieating with the socket 43 which receives and forms e bearing for the said ring 40.

-Tlio fece of the locking disk 36 adjoining the spring 31 llas two pairs of radial grooves 37, and the head of the spring 31 luis a pair of radial ridges 38 adapted te enter the said ra diel grooves, so ns to prevent the accidentel turning,- o1c the disk V l l The locking lever 32 is held fast in either of its extreme positions1 as soon as one of the two nipples 44 drops inten recess 45 formed in the said lever V(lf'igs. 17 and` 121i.

The locking pin 29 witli'notched inner ex treinity, lever l32, screw ring 4:0 and a s )ring pressing on the end of the in are simi ar to those used in. present ri es and are not claimed es pnrt ci my invention. 4 llie adjustable backsiglit of rifles is usually mounted on` the rear part ci the barreL'while the frontsiglit is iited to the frontend of the sinne.

As the accuracy of aiming depends to sights, it is desirable to place the backsight in close proximity to the rear end of the rifle. With ordinary breech actions this is not practicable, but if a straight-pull bo1t-operat ing slide is used, which has a dust-cover-With a Wide and accurately guided base, es in the present case, where the said cover is guided by the two ribs 16 and 17, the backsi ht may be mounted onv the dust-cover. his arrangement is illustrated by Figs. 1, 2 and 3, Where 51 indicates the adjustable sighting lever hinged at 52 to e frame 53 rigidly fixe to the dust-cover 1. The drnwingssliow the sighting' lever in the lowest or tumori-down position. V

fluit I claim is i. ln rnarnzine rifles, e straight-pull bolt niereting slide extending` tion beyond tlie roer edge of tl'ie magazine opening, and having e recess adapted to guido the reencnd of e cartridge charger, when it is being introduced into the mene xine openingl el' the rifle, solisten tially es de scribed.

.lfn runner/.ine riiles having a bolt 'with roter-y locking; action, n. straight-pull l3o1t-- operetine' sllde, iornnng et its iront end e bridge uci-oss the upper psrt of tlic lnirrel, tlic seid liridfre being adopted to strike willi its roer ede-e the liolt-l1end immediately alter the boit nos been unlocked, substantinllyas described :ind for tire purpose specified.

tending: ncl-oss the i' i i i 3. in, n device for locking?r tlic cooking heed und the straight-pull bolt-operati1ur slide of a rille, tlic ceinliinetion of a locking pin exluise of the coclrini;F heed, o. n'iinury Ioclrinff5 lever fixed on scid pin, e. lenliinjeffglislr mounted to turn on the locking pin in proxin nity to said prin i ery locking lever .'39 oi" the locking pin, and

seine extent on the distance between the two i Y and arranged to be turned thereby, a spring adapted to' press on the outer face of thesaid olt-o erating'slide in forward position.

'4. In a evice forlocking the cooking head and the straight-pull bolt-operating slide of a riie, the combination of a locking pin eX- tending acrossA the base 01"' theeocking head,

v. a primary locking lever fixed on said pin, a

adapted to engage each other when said lock-V locking disk mounted to turn on the locking pin-in proximity to said primary locking 'lever and arranged to be turned thereby', a spring adapted to press on the outer face of the locking disk, ri bs and grooves on the adjacent faces of said spring and locking disk ingdisk has been rocked by said primary locking lever to either extreme position, said looking disk having an arm extending radially therefrom to retain the Milt-operatingl slide in its forward position.

l 5. In a device for locking the cooking head and the straight-pull l olt-operating slide of a rifle, the combination of a loc-king pin extending across the base of the cooking head,

a primary locking lever fixed on said pin, a

locking disk inounted'to turn on the locking pin in proximity to said primary locking lever, a s )ring adapted to press on the outer face of the locking disk, said locking disk having a pair of radial arms projecting into the path of the primary locking lever and adapt-y ed to be rocked thereby in its turning motion both forward and backward, the longer arm being extended to abut against the rear end of the bolt-operatin;;` slide so as'to retain the latter in its full forward position, and means for retaining the looking disk in its extreme forward or rear position by the pressure of said spring, substantially as described.

6. ln a riiie having a combined straightpull bolt-operating slide and dust-cover, ,the combination of an approximately semi-cylindrical dust-cover guided by the breech frame, with an adjustable sighting device mounted on the said dust-cover, `substantially as and Afor the purpose described.vr

In testimony `whereof l have hereunto set .my hand in presence of two subscribing wit- Ile/SS05.

meins ROBERT RANEY ASHTON. fitnesses 1 J. WETTER, H. J. BROGKWELL.